How severe is CVE-2025-6721?

CVE-2025-6721 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-6721 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-6721?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-6721 have an EU (EUVD) identifier?

Yes. CVE-2025-6721 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21952.

When was CVE-2025-6721 published?

CVE-2025-6721 was published on 2025-07-19 and last updated on 2026-06-17.

CVE-2025-6721

CVE-2025-6721 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21952
Weakness: CWE-862
Published: 2025-07-19
Last modified: 2026-06-17

Description

The Vchasno Kasa plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the mrkv_vchasno_kasa_wc_do_metabox_action() function in all versions up to, and including, 1.0.3. This makes it possible for unauthenticated attackers to generate invoices for arbitrary orders.

Frequently asked questions

What is CVE-2025-6721?: The Vchasno Kasa plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the mrkv_vchasno_kasa_wc_do_metabox_action() function in all versions up to, and including, 1.0.3. This makes it possible for unauthenticated attackers to generate invoices for arbitrary orders.
How severe is CVE-2025-6721?: CVE-2025-6721 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-6721 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-6721?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-6721 have an EU (EUVD) identifier?: Yes. CVE-2025-6721 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21952.
When was CVE-2025-6721 published?: CVE-2025-6721 was published on 2025-07-19 and last updated on 2026-06-17.

References

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